Andrew hunter



A. HUNTER.

AMALGAMATOR.

No. 64,534. Patented May 7, 1867.

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ANDREW HUNTER, OF SAN FRANCISCO, CALIFORNIA,

Letters Patent No. 64,534, dated May 7, 1867. l

IMPROVED AMALGAMATOR.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, ANDRnW HUNTEIK, of thecity and county of SanFrancisco, State of California, have invented a new and useful Machinefor Reducing, Separating, and Amalgamating Gold, Silver, and otherMetals, and for saving. amalgam; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being bad to the annexed drawings,making a part of this specification, in which Figure 1 is a side view.

Figure 2, an end View.

Figure 3, a longitudinal vertical section.

Figure 4, a horizontal section.

A is a box of wood or metal. B B B are blocks of wood set with end ofgrain up. 0 G C are metal dies. D D D are shoes or mullers shod withiron attached to frame E, which is suspended from adjustable frame F byrods G G. Frame F works up and down in grooves in posts H H, and isadjusted by screws I 'I. J is a rod connecting crank or eccentric withframe E. L is a box' for quicksilver. M is a frame with agitators andskimmers, moved in unison with frame E by rods or bars N. I O is a tableof wood,'with steps covered with copper plates, and is suspended toaframe, or moves on a slide or rollers by means of driver P, connectedby rod Q to main shaft R and crank S. The blocks BB and metal dies G Oalternating, cover the entire bottom'of the box A. The shoes or mullersD D extend across the entire width of said box A. The top of the mullersis covered entirely with plates of copper. The box A should be lined onsides and ends with copper.

I Operation.

The pulverized are or pulp passes into box A, the mullers D D resting onor near the blocks B B and dies 0 C. The machine is set in motion bymeans got crank or eccentric K and connecting-rod J, which gives'avibratory motion to frame E and frame M. The pulp and heavy sandspassing under the .mullcrsare reduced to a proper fineness, and thefine, free gold that may be held in suspension is amalgamated on theplates of rubbers or mullcrs D D and copper plates of box A. The pulppasses from box A into box L, and is there kept in agitation by means offrame M with its agitators and shimmers, keeping bright and free fromdross. The pulp then passes on to table 0, which has an oscillatorymotion from side to side by means of .cranle Q and driver P, for thepurpose of settling the precious metals on the plates as it passes. fromstep to step. By reason of the thorough rubbing and the passing over thecopper plates of boxes A and L and the steps of table 0, a more perfectreduction and amalgamation is produced, and the precious metals are morethoroughly freed from for eign substances. The table 0 may be used inconnection with or separately from the other parts of the machine.

Claim.

Having thus described my invention and its operation, what I claim asnew, and for which I desire Letters Patent to issue, is I The box A,with sides and ends lined with copper, in combination with the blocks BB and dies C 0, sub-- stantially as described.

I claim the frame E,with shoes'or mullers D D suspended to frame F byrods or bars G G, or their equivalent, worked by rod J and crank oreccentric K, as hereinbefore set forth. Y

I claim the movable frame F, with adjusting screws 1 I, or theirequivalent, for adjusting mullers D D t any desired heigl.

I claim covering the tops of the mullers D D with copper.

I claim box L, with frame M, set with shimmers and agitators,substantially as described, and for uses and purposes as hereinbeforeset forth. I

I claim table 0, with steps covered with copper plates, with sidevibratory motion as given by driver 1? and rod Q.

I claim the box A, lined with copper plates, in combination with blocksB B, dies C C, mullers D D, adjusting or movable frame F, screws I I,rod J, crank or eccentric K, box L, and frame M, with agitators orskimmers, substantially as described and for the uses and purposes ashereinbefore set forth.

I claim the last-described combination in connection with the table 0,with its side vibratory motion, substantially as described and for theuses and purposes as hereinbefore set forth. I ANDREW HUNTER.

Witnesses:

CHAS. R. Bonn,

J. W. MCKENZIE.

